Arctic climate is now rapidly warming, so Greenland Ice Sheet shrinks faster. Greenland’s ice sheet, which is two-miles thick and covers an area about the size of Mexico, has lost mass at an accelerated rate over the last decade. Glaciers in west Greenland are melting 100 times faster at their end points beneath the ocean than they are at their surfaces, according to a NASA/university study. It is caused by warmer ocean waters. This reason is a dominant factor in the current evolution of Greenland’s glaciers.